[[Image:Hypervitaminosis A.jpg|right|thumb|100px|<small><center>Hypervitaminosis A (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
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*Main lesions:
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**Injury to growth cartilage -> [[Bones - Anatomy & Physiology|premature closure of growth plate]]
**[[Musculoskeletal Terminology - Pathology|Osteophyte]] formation in prolonged exposure
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*In cats fed bovine liver for prolonged periods
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**Rich in vitamin A in grazing animals
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**Vertebrae fuse with each other due to bone proliferation - '''cervical spondylosis''' ('''ankylosing exostosis''' of the vertebral column), especially in the neck
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*Can also be teratogenic, especially in pigs ([[Cleft Palate|cleft plate]] and abortions)